Assessing the Credit of Walking and Running (ACSM) in the Estimated Volume of Oxygen Consumption in Active Young Iranian Men

The aim of this study was to assess the agreement between the predicted VO2 by the means of the ACSM walking and running equations and criterion methods in active young men. Fifty active young men were selected as subjects (Mean ± SD Age 21.04 ± 2.069 yrs., Weight 70.11 ± 5.825 kg, Body Mass Index 22.36±3.21 kg/m2 and VO2max 51.08 ± 3.67 ml/kg/min) and completed an exhaustive treadmill test protocol. Walking and running data considered corresponding to the 2, 4, 6, 8, 10, 12, 14, 16, and 18 km/h. Bland-Altman graphical model and Interclass Correlation Coefficient (ICC) statistical tests were used to evaluate the absolute agreement of the two methods for predicted VO2. Findings showed lack of predicted VO2 agreements between ACSM equations and criterion methods during walking and running with the different speeds (walking: ICC= 0.422; ±1.96; 95% CI = -15 to .2 ml/kg/min; running: ICC= 0.045; ±1.96; 95% CI = -28 to -1.3 ml/kg/min). Based on the results, it can be concluded ACSM walking and running equations is not valid for predicting of VO2 in the Iranian young boys.